Tag: Sulphuric Acid

Sulphur prices are expected to recover from declines in May and June and continue climbing over the coming months, though good availability will limit upside.

Sulphur prices in China are expected to recover with downstream demand anticipated to surge in the second half of the year and good affordability to support raw materials purchasing. Chinese nitrogen, phosphate, and potash prices have surged, driven by heightened demand for the summer corn application season. In particular, average 11-44 MAP prices jumped 16% from $390/t ex-works to $463/t in Hubei province. However, sulphur prices have taken a while to follow the trend on phosphate prices. Port prices have fluctuated in the range of $126-130/t c.fr since late March, and import prices fell from a high of $112/t c.fr to $100/t c.fr, capped by high port inventory and sufficient supply. Port inventories in China remain around 2.8 million tonnes, well above the 2022 average of 1.4 million tonnes and the 2023 average of 2.07 million tonnes. These elevated stock levels limited the upside for prices in China and provided buyers with options. At the start of July, Sinopec’s Puguang, the largest sulphur producer in China, increased its sulphur sales prices at Wanzhou port up $4/t RMB980/t, while its factory price at Dazhou was up RMB20/t at RMB950/t ex-works. These prices are considerably down from RMB1,600/t in December 2022 and RMB 2,945/t from mid-June 2022 and are the lowest since July 2023, but are still up from a low of RMB605-655/t at the end of August 2020.

A plant operating a spent acid decomposition furnace as part of its sulphuric acid production facility desired to increase acid production primarily by processing additional spent acid while making minimal modifications to the plant equipment and operations. The Messer solution entailed introducing oxygen in two steps, both as an enrichment to the combustion air and by direct injection into the furnace. The resulting performance improvements exceeded the project objectives for acid production and spent acid decomposition, without increasing NOx emissions. This paper provides a summary of the system start-up and tuning and presents the resulting improvements and lessons learned.

We profile leading suppliers of tailor-made pumps to the phosphate, potash and sulphur industries.

How does an engineering company complete the basic and detailed engineering for a phosphoric acid plant – and provide the full design for the off-site sections and utilities? Jan Tytgat, De Smet Agro’s Process Engineering Manager, explains an approach based on partnership with the technology licensor and client that combines engineering expertise with experience.

Sulphur benchmarks firmed around the globe in April. Although availability remains ample, downstream production is expected to rise in the weeks ahead and further upside for prices is expected, at least in the short term. Prices increased the Middle East, Indonesia, India, Brazil, and the Mediterranean. The Middle East spot price was assessed up an average $3/t at $83-88/t f.o.b. The previous low end of the range was no longer considered achievable. The price has climbed 27% since mid-February this year. The benchmark is down 53% from early December 2022, but had climbed 47% from the end of July 2023 to its mid-October average of $110/t f.o.b. before declines set in once again. Chinese buyers returned to the international spot market in late April following weeks of inactivity, lifting c.fr prices.

Dundee Precious Metals says that it has sold the Tsumeb smelter, including all associated assets and liabilities, to China’s Sinomine Resources Group for $49 million. Sinomine Resources Group is a Chinese company founded in 1999. Its main business and operations cover four segments: EV-lithium material development and utilisation, rare and light minerals (caesium and rubidium) development and application, geo-tech services and mining property development. Dundee Precious Metals will transfer all assets debt-free and cash-free, subject to normal working capital adjustments. The transaction is subject to customary closing conditions, including approval under the Namibia Competition Act and approvals required from Chinese regulatory authorities for overseas investments, and is expected to close in Q3 2024.

Downstream phosphate production is expected to climb, with further sulphur price recovery expected. Overall, global demand remains lacklustre as downstream demand has yet to increase substantially in key markets and sulphur availability from most origins is ample.

In today’s dynamic business landscape, digitalisation has become a powerful tool for companies seeking to enhance operations. By leveraging real-time plant data, organisations can create more meaningful interactions between operations teams, technical experts within the industry and the power of machine learning. David Dericotte and Linda Colby of Elessent Clean Technologies introduce the MECS® digital advisor, a web-based dashboard for plant performance assessment, troubleshooting and a supplemental mentoring tool for less experienced engineers and operators.

Digitalisation is making a strong impact in the process industry and is providing an opportunity to have a positive impact on the production KPIs. Metso’s Metals & Chemical Processing Business reviews the impact of digitalisation in the sulphuric acid industry today and discusses the concept of a future pit-to-port system within a digital eco-structure.